Why, would you look at this. All this time we were expecting Apple to be the first one to flip the switch and limit desktop users to Mac App Store applications and turn Mac OS X into a walled garden, but in fact, Microsoft will be the first to flip this switch. As it turns out, Metro applications can only be installed through the Windows Store - with sideloading only for enterprises and developers (this doesn't apply to legacy applications).

While there's nothing substandard about the GNU userland, I have to agree that real FreeBSD, or NetBSD, or DragonFlyBSD, or OpenBSD would be the way to go to experience a "new" OS. Debian GNU/kFreeBSD is just Debian with a different kernel.